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Ubuntu.comUB:CVE-2019-14317

HistoryDec 11, 2019 - 12:00 a.m.

CVE-2019-14317

2019-12-1100:00:00

ubuntu.com

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:N/A:N

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS

0.002

Percentile

51.8%

JSON

wolfSSL and wolfCrypt 4.1.0 and earlier (formerly known as CyaSSL) generate
biased DSA nonces. This allows a remote attacker to compute the long term
private key from several hundred DSA signatures via a lattice attack. The
issue occurs because dsa.c fixes two bits of the generated nonces.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchwolfssl< anyUNKNOWN
ubuntu16.04noarchwolfssl< anyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	wolfssl	< any	UNKNOWN
ubuntu	16.04	noarch	wolfssl	< any	UNKNOWN

References

launchpad.net/bugs/cve/CVE-2019-14317

nvd.nist.gov/vuln/detail/CVE-2019-14317

security-tracker.debian.org/tracker/CVE-2019-14317

www.cve.org/CVERecord?id=CVE-2019-14317

www.wolfssl.com/docs/security-vulnerabilities/

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:N/A:N

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS

0.002

Percentile

51.8%

JSON

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